Mendel chose pea plants with easy to see , each of which had two forms. For example, flower color is a characteristic with two forms:purple or white.

The population of bacteria in a petri dish doubles every 40 seconds. the population of the bacteria is initially 400 organisms. what unit is most appropriate for the time at which the number of bacteria is 300? hour bacteria per hour second bacteria per second

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic

Environmental impacts on evolution : mastery test